The Memphis Grizzlies today announced the team has signed free agent forward/center Alex Stepheson. Per team policy, terms of the deal are not disclosed. Stepheson (6-10, 270) has played professionally in Greece, Slovenia and Turkey since finishing his collegiate career at the University of Southern California. The 28-year-old averaged 12.3 points and a league-leading 9.2 rebounds in 26.8 minutes while shooting 56.3 percent from the field, in 29 games (21 starts) last season for Istanbul Buyuksehir Belediyesi. Unselected in the 2011 NBA Draft, the Los Angeles native also made three appearances for the Dallas Mavericks during the 2015 NBA Summer League in Las Vegas. The Grizzlies’ roster stands at 20 players.